A LtCol who doesn't know the difference between three rifle volleys and a 21-gun salute.
The firing squad is normally 7 people -- they fire 3 rounds -- thus what most folks now-s-days call a 21 gun salute.
In fact, it carries, in my mind, more honor than the trditional 21 gun (cannon) salute which is for heads of state. Even Hitler, Pol Pot, Mao, and Staling received one of those -- earned or not.
This kind is earned the hard way.